Pre-Class Quiz #5 has been marked. The mean was 86%, somewhat less than has been typical but still pretty good. The marks have been loaded into STORM. Please check STORM for accuracy.
| We discussed the production of matter-antimatter pairs as an example of Mass-Energy Equivalence. The button accesses a Flash animation of pair-production and antimatter-matter annihiliaton that we used in class. | |
In discussing the collapse of the Standard Hot Big Bang model of cosmology and the possible collapse of General Relativity, I showed this quote from Michelson in 1899:
"The more important fundamental laws and facts of physical reality have all been discovered and they are now so firmly established that the possibility of their ever being supplanted in consequence of new discoveries is exceedingly remote .... Our future discoveries must be looked for in the 6th place of decimals."
I also showed this quote from John Horgan's book The End of Science (1996):
“And now that science - true, pure, empirical science - has ended, what else is there to believe in?”
| Here is a link to the pdf of today's journal. | |
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